Daily use and maintenance:1, clean the filter screen in the back of the machine by washing or strong wind, and make sure that it is re installed on the machine after it is dry.2, keep the casing dry and clean, use a dry and soft cloth to wipe the surface of the machine.3, use a clean cloth dipped in neutral solvent to remove stubborn stains.4, must use neutral solvents to avoid damage to the paint surface.5, when the brush is exhausted, please replace the new brush or contact with the professional maintenance staff to replace.